i-gotU
i-gotU GT-120B GPS / GNSS Data Logger - Water Resistant, 21g only, Managing Large Deployments with Ease (2022 Edition)
i-gotU GT-120B GPS / GNSS Data Logger - Water Resistant, 21g only, Managing Large Deployments with Ease (2022 Edition)
Country of Origin: Taiwan
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The GT-120B is now out of stock. Since the manufacturer, i-gotU, has discontinued their business, no additional units of the GT-120B will be available. We are currently developing a replacement model, which is expected to be available by Feb 2026. Stay tuned and check back on this page for updates.
(USB / Wireless dual interfaces, GPS and QZSS multiple constellations, Windows, Android and IOS compatible)
Compared to previous models (i.e. GT 120) which are GPS, GT-120B is a GNSS logger that utilizes both GPS and QZSS constellations. It has multi-path detection, which dramatically eliminates Ionospheric error and multi-path effects. Compared to previous GPS models, the data accuracy is significantly better.
GT-120B has usb and wireless dual interfaces, which allows data to be downloaded either via either usb or wirelessly. Rather than using the proprietary USB cable for GT-120, GT-120B uses a standard micros-usb cable.
GT-120B can be used as an usb GNSS receiver with 1-10Hz update rates. When used as a GNSS data logger, the update rate is 1 Hz.
Managing large deployments of GT-120B with ease
The I-gotU GT-120B comes with mobile and Windows apps which help manage a large number of loggers.
1. You can view all your GT-120B devices on Google maps from your mobile phone app.
2. You can self define a group, add loggers to the group and select tracks from the group.
3. From your mobile phone, you can keep track of battery and memory statuses of all your GT-120B devices.
4. Not only can you backup your device settings, you can also standardize the settings of a bunch of devices by using import / export features.
5. If you want to protect the GT-120B data from unauthorized downloads, you can enable password check settings.
6. GT-120B can be turned on / off by a predefined schedule.
Battery runtime by GPS log interval
|
GPS log interval |
Battery runtime |
|
1 sec |
15hr |
|
5 sec |
15hr |
|
10 sec |
25hr |
|
15 sec |
60hr |
|
30 sec |
120hr |
|
60 sec |
180hr |
|
60 min |
2 months |
Logging configuration options
|
Configurable GPS Logging interval |
1sec~60min59sec |
|
Circular Logging |
YES |
|
POI |
YES |
|
Scheduled Logging |
YES |
|
Merge scheduled waypoints |
YES |
|
Smart Tracking |
YES |
|
Power triggered auto-logging |
YES |
Technical Spec:
|
Dimension |
44.5x28.5x13.8mm |
|
Weight |
21.5g |
|
Wireless connect with mobile phones |
Yes |
|
Wireless Chipset |
Nordic nRF 52820 |
|
Wireless range |
20m |
|
GPS Chipset |
MTK MT3337 |
|
Antenna |
Patch Antenna |
|
Channels
|
22 tracking / 66 acquisition-channel GPS receiver; Supports up to 210 PRN channels; |
|
GNSS support |
GPS & QZSS |
|
SBAS support |
WAAS/EGNOS/MSAS/GAGAN |
|
Other enhancement
|
12 multi-tone active interference cancellers (with ISSCC2011 award); Indoor and outdoor multi-path detection and compensation; Internal real-time clock (RTC); |
|
RTCM ready |
YES |
|
NEMA support |
NMEA 0183 standard V3.01 and backward compliance. Supports 219 different data |
|
update rates for position |
10 Hz |
|
GPS Sensitivity |
Acquisition: -148 dBm (cold) / -163 dBm(hot) Tracking: -165 dBm |
|
Cold Start |
< 35sec |
|
Warm Start |
< 34sec |
|
Hot Start |
<1 sec |
|
USB cable |
micro-usb, USB 2.0 |
|
Battery |
380mAh |
|
LED |
Blue & Red |
|
Operating Temperature |
-10 ~ +50°C |
|
Water-resist |
YES |
|
GPS Logger |
YES |
|
GPS Receiver |
USB |
|
Memory |
65000 |
|
Motion Detection |
NO |
|
Disable Button |
YES |
|
Disable Wireless |
YES |
|
Disable LED flashing |
YES |
|
Setup wireless download password |
YES |
|
Enable wireless upon schedule |
YES |
|
Configure wireless broadcast interval |
YES |
|
Broadcast latest GPS position |
YES |
|
Configure wireless TX Power (output power of wireless signal) |
YES |
|
Rename device (such as nickname) |
YES |
|
Power Saving Option above 7sec |
NO |
|
Firmware update |
via PC software |
|
Device configuration |
via USB or wirelessly |
|
Data download |
via USB or wirelessly |
|
Combined maps |
YES |
|
GPS Data Import format |
GPX |
|
GPS Data Export format |
GPX, CSV |
Software and compatibility:
GT-120B comes with below software:
- Windows App: compatible with Windows 7, 8, 10 & 10
- IOS App: compatible with IOS 12 and above
- Android App: compatible with Android 7 and above
“I-gotU GPS” IOS / Android apps:
Instead of connecting through a USB cable, you can now wirelessly change configuration settings of GT-120B through the iphone/Android app.
You can wirelessly download the log data from GT-120B to your smartphone.
To check the status of the device’s battery and memory, open the "i-gotU GPS" app.
Find my Device on Google Map
You can view the locations of your devices on Google maps from your mobile phone.
“I-gotU GPS” Windows application:
The new “I-gotU GPS” Windows software has the below new features:
- playback group movement
- measure distance from waypoint A to B.
- measure distance from different anchor points.
Package content:
1 x GPS logger;
1 x USB cable;
(Does NOT comes with Jelly case or fastening strap.)
Product Resources
Official Documents:
YouTube Videos:
Software Downloads:
(To download the app for Windows, iOS or Android devices, simply click the link below that corresponds to your device.)
Sample Data Downloads:
